Metallurgy, Vol. 63 No. 2, 2024.
Preliminary communication
Melting of calcined pellets with production of high-carbon ferrochrome
Ye. Tastanov
; Satbayev University, Institute, of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
*
N. Sadykov
; Satbayev University, Institute, of Metallurgy and Ore Beneficiation, Almaty, Kazakhstan
M. Dossekenov
; ERG Research Engineering Center LLP
* Corresponding author.
Abstract
The use of composite calcined pellets obtained according to a sequential scheme of chemical and gravitational beneficiation of dump sludge tailings of the Dubersay tailing dump as a part of a charge with factory chromium concentrate enabled to obtain high-carbon ferrochrome FeCr70C90Si4LP China Standard where the low phosphorus content is not more than 0,03 % and that of sulfur is not more than 0,1 %. The obtained samples of high-carbon ferrochrome and slag were studied. The maximum chromium content was 57,14 % at 1 750 °C, the charge sample included 50 % of experimental pellets and 50 % of factory concentrate and reducing agent 17 %, chromium recovery into the alloy was 80 %.
Keywords
sludge tailings; ferrochrome; melting; pellets alloy
Hrčak ID:
312332
URI
Publication date:
1.4.2024.
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